Download or read book Vertebrate Surveys on Paoha Island and Adjacent Mainland Mono Lake and Basin California written by Michael L. Morrison and published by . This book was released on 1991 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Information Needs on Terrestrial Vertebrate Species of the Interior Columbia River Basin and Northern Portions of the Klamath and Great Basins written by Bruce G. Marcot and published by . This book was released on 1997 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Vertebrate Surveys written by Helen Owens and published by . This book was released on 2000 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 2006 with total page 1752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphibian Survey and Monitoring Handbook written by John W. Wilkinson and published by Pelagic Publishing Ltd. This book was released on 2015-08-17 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Evidence bases for conservation are becoming increasingly important to convince landowners and politicians of the need to take action in defence of species and habitats all around the world. A valuable feature of this book is its emphasis on collecting and analysing such essential information." Trevor Beebee, Phyllomedusa Amphibians are among the most globally endangered groups of vertebrates with more than one-third of species being assessed as declining or threatened. Often, amphibian declines can be attributed to a suite of interacting factors, many of which are human in origin, but further information is needed to elaborate the key causes and to discover ways of reversing declines. Robust surveys provide vital ecological and biological data on amphibian populations, and underpin the decisions made to protect species and reverse their declines. Ongoing monitoring informs land managers and decision makers about whether they are taking the right action. This book is designed to help you carry out amphibian surveying and monitoring so that the results of your surveys can be used effectively. Part 1 introduces amphibians: order Anura (frogs and toads); Caudata (newts and salamanders); and order Gymnophonia (caecilians). Part 2 is essential reading before you start surveying. It introduces the different types of survey and monitoring programmes and discusses survey aims and resources. It contains chapters on collecting and handling survey data; survey permissions and licencing; health and safety, and biosecurity; and handling amphibians. Part 3 discusses everything you need to know during your survey, and provides a detailed look at amphibian survey methods. Part 4 covers presenting and using your survey’s data to best effect. A useful resources section is also provided, with example survey forms and details of additional information resources that will optimize the impacts of your surveys. Key amphibian survey techniques are discussed with reference to published examples of successful surveys – so you’ll be able to choose what’s right for your situation. Tips on optimizing your survey effort and handling amphibians in the field are also included. Whether carrying out a student expedition project or seeking information to support the management of a protected area, this book contains essential advice from an amphibian ecologist who has encountered the same sorts of decisions you’ll face when planning your surveys.
Download or read book The Development of the Vertebrate Retina written by G. Grün and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mature vertebrate retina is a highly complicated array of several kinds of cells, capable of receiving light impulses, transforming them into neuronal membrane currents, and transmitting these in a meaningful way to central processing. Before it starts to develop, it is a small sheet of unconspicuous cells, which do not differ from other cells of the central nervous system. The chain of events which lead to the trans formation from this stage into that of highly specialized cells ready to fulfll a specific task, is usually called "differentiation. " Originally, this word indicated firstly the proc ess of divergence from other cells which were previously alike, and secondly, the change from an earlier stage of the same cello lt has become widespread practice to imply by the word "differentiation" also the acquisition of specific properties and capacities which are characteristic of a mature, Le. , specifically active, cello Every cell is active at any stage of development, but certain activities are shared by most cells (e. g. , the activities of preparing and accomplishing proliferation, that of initiating development, that of maintaining a certain level of metabolism), while there are others which are shared by only a small number of - originally relate- cells. In most cases these latter activities are acquired by the fmal steps of cellular development, the terminal "differentiation. " In the context of the present paper, the word "function" will refer to this latter type of specific activity.
Download or read book Marine Research written by and published by . This book was released on 1969 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Bibliography and Research Inventory of Vertebrate Fauna in Western Australia written by and published by National Gallery of Victoria. This book was released on 1984 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regional Data to Support Biodiversity Assessments written by and published by . This book was released on 2005 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatially explicit data on the location of species across broad geographic areas greatly facilitate effective conservation planning on lands managed for multiple uses. The importance of these data notwithstanding, our knowledge about the geography of biodiversity is remarkably incomplete. An important factor contributing to our ignorance is that much of the biodiversity data are not readily accessible because they are dispersed across many institutions and often have not been digitized. This report documents our efforts to address these conservation planning constraints. We have compiled extant data on predicted species distributions and more than 680,000 occurrence records for terrestrial vertebrates and butterflies into a single digital database for general use in conducting geographically broad biodiversity assessments across a two-state area (Arizona and New Mexico) that defines the Southwestern Region of the USDA, Forest Service. These data represent one of the most complete databases on species occurrence to be compiled for the Southwest. Our objectives are twofold: (1) to document the types, sources, and characteristics of the data comprising the biodiversity database; and (2) to illustrate the utility of the data in addressing applied conservation problems across the Southwestern Region. We report on three case studies that illustrate how the data can be used to generate simple distribution maps using both point locations and predicted ranges, describe the patterns of species richness for seletected taxa across the Southwest, and provide an example of how managers may use the data to identify where potential resource conflicts may be par-ticularly important on National Forest System lands.
Download or read book Vertebrate Damage Control Research in Agriculture written by and published by . This book was released on 1983 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater Ecology and Conservation written by Jocelyne Hughes and published by Oxford University Press. This book was released on 2018-11-30 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical manual of freshwater ecology and conservation provides a state-of-the-art review of the approaches and techniques used to measure, monitor, and conserve freshwater ecosystems. It offers a single, comprehensive, and accessible synthesis of the vast amount of literature for freshwater ecology and conservation that is currently dispersed in manuals, toolkits, journals, handbooks, 'grey' literature, and websites. Successful conservation outcomes are ultimately built on a sound ecological framework in which every species must be assessed and understood at the individual, community, catchment and landscape level of interaction. For example, freshwater ecologists need to understand hydrochemical storages and fluxes, the physical systems influencing freshwaters at the catchment and landscape scale, and the spatial and temporal processes that maintain species assemblages and their dynamics. A thorough understanding of all these varied processes, and the techniques for studying them, is essential for the effective conservation and management of freshwater ecosystems.
Download or read book Systematic Catalogue of Vertebrata of the Eocene of New Mexico written by Geographical Surveys West of the 100th Meridian (U.S.) and published by . This book was released on 1875 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vertebrate Paleontology in New Mexico written by Spencer G. Lucas and published by New Mexico Museum of Natural History and Science. This book was released on 1993 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analyzing Vertebrate Movement in and Around Natural Areas Through Road Surveys written by Victoria K. Freter and published by . This book was released on 2020 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the expansion of the human population, new roads are continually being built, leading to an increase in fragmentation or loss of natural habitats. These roads can act as corridors for vertebrates connecting natural habitats or aiding in migration, but they can also act as barriers or boundaries leading to fragmentation, isolation, and/or mortality on roadways. Research has focused mainly on larger highways, outside of the U.S., and away from larger urban areas. The Oak Openings Region, a biodiversity hot spot in northwestern Ohio, is a matrix of human dominated land use and remnant natural patches. This research focused on identifying vertebrate mortality hot spots and the spatial and temporal variables associated with vertebrate road mortality. From mid-April to the end of September 2019, we surveyed 38 road transects within and around three protected (natural) areas to record diversity, abundance, and distribution of roadkilled vertebrates and to identify influencing factors (e.g., land use, canopy cover, environmental data, road characteristics). We found an uneven spread of roadkill, with 45% of roadkill found on nine out of the 38 (24%) surveyed transects, highlighting potential areas to prioritize for mitigation. During the spring months (April 14 - June 20), nine of the transects had no roadkill, but in the summer months (June 21 - September 18), only one transect had no roadkill. This suggests that seasonality influenced the abundance and distribution of roadkill. As transects moved northward, there was a positive trend of more roadkill with increased developed land use. We found a total of 297 roadkill on or around the roads, with all vertebrate taxa included. Mammals made up 49.8% of the roadkill found. Mammal roadkill showed a significant positive trend with average canopy cover (p
Download or read book Vertebrate Coprolites written by Adrian P. Hunt and published by New Mexico Museum of Natural History and Science. This book was released on 2012 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Island Bats written by Theodore H. Fleming and published by University of Chicago Press. This book was released on 2010-03-15 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second largest order of mammals, Chiroptera comprises more than one thousand species of bats. Because of their mobility, bats are often the only native mammals on isolated oceanic islands, where more than half of all bat species live. These island bats represent an evolutionarily distinctive and ecologically significant part of the earth’s biological diversity. Island Bats is the first book to focus solely on the evolution, ecology, and conservation of bats living in the world’s island ecosystems. Among other topics, the contributors to this volume examine how the earth’s history has affected the evolution of island bats, investigate how bat populations are affected by volcanic eruptions and hurricanes, and explore the threat of extinction from human disturbance. Geographically diverse, the volume includes studies of the islands of the Caribbean, the Western Indian Ocean, Micronesia, Indonesia, the Philippines, and New Zealand. With its wealth of information from long-term studies, Island Bats provides timely and valuable information about how this fauna has evolved and how it can be conserved.
Download or read book Vertebrate Fauna Survey written by Resource & Conservation Assessment Council - Department of Prime Minister & Cabinet and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
